Telephone-alarm system.



No. 745,235. PATENTED NOV. 24, 1903.

J. D. PEAOHEY. TELEPHQN'E ALARM SYSTEM.

APPLIUATIONIILED AUG. 14, 1902. NO MODEL. 2 SHEETS-SHEET 1.

, INVENTOR JOMQDLEWy No. 745,235. PATENTED NOV. 24,1903;

\ J. D. PEAGHEY.

TELEPHONE ALARM SYSTEM.

APPLICATION FILED we. 14, 1902.

no MODEL. z SHEETS-SHEET 2.

WITNESSES: 9 S 9g JohmBBcmMy,

m: NORRIS PETERS co. PNOTO-VIYNQ, wnsnmarou. u. c

Fatented November 24;, 1963.

PATENT FFICEO JOHN D. PEAOHEY, OF EAST ORANGE, NEW JERSEY.

TELEPHONE-ALARM SYSTEM.

$PECIFICA'1ION forming part of Letters Patent No. 745,235, dated November 24, 1903.

Application filed August 14,1902. Serial No. 119,613. (No model.)

To aZZ whom it may concern:

Be it known that I, JOHN D. PEAOHEY, a citizen of the United States, residing at East Orange, in the county of Essex and State of New Jersey, have invented'certain new and useful Improvements in Telephone-Alarm Systems; and I do hereby declare the following to be a full, clear, and exact description of theinvention,such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to certain improvements in that class of automatic alarm devices represented by the device shown in my prior application filed in the United States Patent Office January 13, 1902, Serial No. 89,539. r

The objects of the present improvements are to simplify the construction of automatic alarm devices of this class and reduce the cost thereof and secure a more efiective and positive arrangement of parts and to secure other advantages and results, some of which maybe referred to hereinafter in connection with the description of the working parts.

The invention consists in the improved device for transmitting'an alarm from a telephone-subscribers station to a central office over the ordinary telephone circuit-wires of a common battery or central-energy telephone system and in the arrangements and combinations of parts of the same, all substantially as will be hereinafter set forth and finally embraced in the clauses ofthe claim.

Referring to the accompanying drawings, in which like letters of reference indicate corresponding parts in each of the several figures, Figure l is a front elevation of parts of an ordinary telephone set and an alarm-bell, the circuitsin connection with said parts being shown diagrammatically. Fig. 2 is a detail section taken at line 00, showingacertain cap, case, or inclosure and its catch. Fig. 3 is a similar view showing a slight change in the relation of parts which will be duly explained. Fig. 4 is a perspective view of the said cap or case and its catch. Fig. 5 is a front elevation of the bell, the cap or case thereof being removed. Fig. 6 is aside elevation of the said parts. Fig. 7 is a side elevation showing a modification of construction of my improved device. Fig. 8 is a front elevation of the same, and Fig. 9 is a rear view of the bell or buzzer employed in the said modified construction.

In said drawings, a indicates a part of an ordinary telephone-case the'electrical contents of which are in connection with a common battery or central-energy telephone systom,- of which latter b is the switch-hook and c an ordinary receiver adapted to be suspended upon said switch-hook to open or close the telephone-circuit. Said receiver is provided with an eye 0, adapted to receive a snap-hook e of a flexible cord or connection d, which last extends to and is suspended upon a weighty cap or case f, detachably secured upon the bed-plate g of the electrical bell g. The said electric bell may be of any ordinary construction applicable to the pur-' poses and functions hereinafter specified. 0f

said electric bell h is an electromagnet connected in an alarm-circuit i, which may be an open circuit, as in Fig. 5, or a closed circuit, as in Fig. 1. The cap or case J is controlled by the armaturej of the said electromagnet, which armature in turn operates the bell-hammer In in any suitable manner to effect the desired audible alarm-signal.

Upon the bed-plate g is a horizontally-projecting support Z, upon' which the case f rests, and at the top of said case f is a plate m, providing hooks or detents 01, adapted to be caught by a catch operated by the-armature. This catch is preferably the Wire shank 0 of the hammer is. .When the said shank is in normal relation, it serves to catch one of the hooks n of said case f and hold said .case upon its support Z, so that the said case covers, conceals, and protects the magnets, armature, contacts, wires, &c., of the bell; but when the said wire 0 is operated, because of a change in the circuit neither to open or close the same from its normal condition,and

the armaturej is attracted to or released from the magnet then the wire catch 0 disengages itself or is disengaged from the hook or detent n and the case or cap f falls by gravity from its support Z, the center of gravity of said case being outside of or beyond the end of the projecting support Z, as will be understood. The

flexible connection cl of the said case and receiver extends through an eyep at the bottom of the bed-plate g, and the said eye is so disposed with relation to the switch-hook as that when the weight or caseffalls the receiver 0 will be withdrawn from said switch-hook and, as a result, the telephone-circuit will be closed automatically after the usual manner, so that the central ofiice will be signaled and the sound of the alarm'bell g will be transmitted through the transmitter q and over the telephone-Wires r r to the central ofiice s in the manner described in my prior application.

Ordinarily I prefer to permanently attach the alarm-bell to a Wall or fixture adjacent to the telephone set, so that the sound of the bell may be readily transmitted. Under some circumstances, however, especially where I desire to transmit the alarm to the central office without producing a too loud sound at the subscribers station, I provide an arrangement, as illustrated in Figs. 7, 8, 9, Where the bell or buzzer (and in this case preferably a buzzer) is suspended immediately over the mouthpiece of the transmitter q, so that only a slight or moderate sound will be amplified and at the central office loudly repeated by means well known in this art. When the buzzer is employed, it may be separably suspendedat night, forexampleon the mouthpiece of the transmitter, and in this event the flexible connection d will be passed through an eye 19' at one side of and above the switchhook or in other position to detach the receiver from the hook when d rawn by the gravitating cap.

The bed-plate g may be provided with a catch-rib it, adapted to rest on and over the edge of the mouthpiece, as indicated in Figs. 7 and 9, or the same may be detachably secured in any other manner.

In operation a change in the circuit 2' serves to change the relation of the armature j to the magnet it, so that the catch 0 is released from the weighted capf, which drops by gravity from the support Z, and thus draws upon the flexible cord or connection d and the receiver c to disengage the said receiver from the switch-hook and change the electrical condition of the telephone-circuit in the usual manner, so that the audible alarm of the bell or buzzer will be transmitted to the central station.

Having thus described the'invention, what I claim as new is 1. The combination of an electrical alarm device having a detent and a removable cap normally covering or protecting the electric controlling devices of said alarm device, a telephonic receiver, and a flexible connection between said cap and receiver, said cap being normally held in position by said detent, and adapted to be released therefrom upon the sounding of an alarm, substantially as set forth.

2. The combination with the electric bell, of a cap covering parts of said bell, and held normally in place by a catch, and said catch adapted to engage said cap and be operated automatically by the electric bell to release the cap simultaneously with the ringing of the hell, substantially as set forth.

3. The combination with the electric bell having a hammer and containing an electric magnet and its armature, of a cap covering said magnet and having a hook, the bell-hammer being connected with said armature and serving as a catch to engage said hook and hold said cap in its normal covering relation to the bell, substantially as set forth.

4. The combination with the bell, of a re movable cap controlled by the bell and held in normal relation thereto by the bell-ringing devices, ofa telephone set having its receiver, connected to said cap, substantially as set forth.

5. The combination with a telephone set having a receiver, of an electric alarm device, parts of which are normally inclosed and protected by a weighted closure-case separable from the normally protected parts of said alarm device, said closure-case being connected to said receiver and adapted to operate said receiver when released from the alarm device.

In testimony that I claim the foregoing I have hereunto set my hand this 8th day of August, 1902,

JOHN D. PEACI-IEY.

Vitnesses:

CHARLES II. PELL, RUSSELL M. EVERETT. 

